@mixin ellipsis($line:2) {
	overflow: hidden;
	 text-overflow: ellipsis;
	 display: -webkit-box;
	 -webkit-line-clamp: $line;
	 /* autoprefixer: off */
	 -webkit-box-orient: vertical; // 参考 https://github.com/postcss/autoprefixer/issues/776
	 /* autoprefixer: on */
}